CN211049567U

CN211049567U - Minimally invasive reductor for femoral fracture

Info

Publication number: CN211049567U
Application number: CN201921951140.1U
Authority: CN
Inventors: 陈芒芒; 黄力鹏; 施俊武
Original assignee: Wenzhou Central Hospital
Current assignee: Wenzhou Central Hospital
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-07-21
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a femoral fracture wicresoft restorer, including mounting bracket, location single hook and the stick that resets, location single hook is including setting up in the main part of mounting bracket and setting up in the crotch portion of main part, it has brake valve lever to articulate on the mounting bracket, the stick that resets sets up in the mounting bracket towards the reciprocal sliding of crotch portion, be equipped with between brake valve lever and the stick that resets and both cooperate and be used for the restriction to reset the stick and keep back to the backstop component that crotch portion removed. The utility model has the advantages of it is following and effect: the utility model has the advantages of simple operation and high efficiency.

Description

Minimally invasive reductor for femoral fracture

Technical Field

The utility model relates to an orthopedics medical instrument field, in particular to femoral fracture wicresoft restorer.

Background

Proximal femoral fractures include intertrochanteric and subtrochanteric fractures, and the current internal fixation methods for treating proximal femoral fractures by surgery are divided into two major types, namely an extramedullary fixation system and an intramedullary fixation system. In any kind of fixation method, in order to reduce the occurrence of complications such as screw cutting, loosening and fracture, it is an important step to reduce the fracture as much as possible in the minimally invasive manner. However, since the femoral region has abundant soft tissues, it is often difficult to reduce the femoral region in complicated femoral tuberosity fractures due to soft tissue traction and deep fracture sites.

Chinese patent publication No. CN205083597U discloses a minimally invasive femoral proximal fracture repositor, which comprises a steel structure, a connecting structure and a threaded punctiform repositioning rod; the connecting structure is arranged on a steel structure, and the point-shaped reset rod with the threads is connected with the connecting structure with the internal threads through the threads.

In the patent, the punctiform reset rod and the connecting structure are in threaded connection to drive the punctiform reset rod to slide towards the far end single hook in a reciprocating manner, so that the fracture is reset. This restorer is in the use, and doctor's hand holds in twist grip, just can drive the removal of punctiform bar towards distal end single hook a bit through the rotation twist grip of a circle, and this kind of drive mode complex operation and efficiency are very low. As is known, the time is the life of a patient during an operation, and if the repositor is used for operation, more operation time is wasted, so that the operation time of the patient is influenced, and certain danger is caused to the life of the patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple operation and efficient thighbone fracture wicresoft restorer.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a femoral fracture wicresoft restorer, includes mounting bracket, location single hook and the stick that resets, location single hook is including setting up in the main part of mounting bracket and setting up in the crotch portion of main part, it has brake valve lever to articulate on the mounting bracket, the stick that resets sets up in the mounting bracket towards the reciprocal sliding of crotch portion, be equipped with between brake valve lever and the stick that resets and both cooperate and be used for restricting the non-return component that the stick that resets removed to crotch portion back to.

Through adopting above-mentioned technical scheme, during the use, will fix a position the single hook and put into the thighbone inboard through little incision, the stick that resets is operated the control handle cooperation to doctor's hand, makes the stick that resets and restricts the stick that resets and move back to the crotch portion under the effect of contrary component for the stick that resets can only move towards the crotch portion. The reset rod is pushed to move towards the bent hook part and then is matched with the positioning single hook to reset the fracture end position together, so that the operation of the restorer is simpler, more convenient and quicker, the time for operating the restorer is shortened, and the reset efficiency is improved. After the thighbone of the fracture is fixed, the hand operation control handle of the doctor is separated from the resetting rod, so that the resetting rod and the resetting rod are not matched for limitation, the resetting rod can move back to the hook part, the resetting device can be quickly taken out, and the operation is convenient and quick.

Further setting the following steps: the non-return component comprises a one-way rack which is arranged on the peripheral wall of the reset rod and extends along the axial direction of the reset rod and a latch which is arranged on the control handle and can be meshed with the one-way rack.

By adopting the technical scheme, the one-way rack and the clamping teeth are matched to limit the reset rod to move back to one side of the hook part, so that the function of stopping the reverse is achieved. When the latch is separated from the unidirectional rack, the reciprocating sliding of the reset rod can be realized.

Further setting the following steps: including setting up in the mounting bracket and supplying the slide opening that the stick that resets slided, it follows its axial extension's guide spout to reset to be equipped with on the stick, be equipped with cooperation guide spout in the slide opening and be used for the restriction to reset excellent circumferential direction's stopper, work as during stopper cooperation guide spout, the latch can with one-way rack intermeshing.

Through adopting above-mentioned technical scheme, the cooperation between guide spout and the stopper is used for guiding the stick that resets and removes along its axial for the stick that resets can not take place circumferential direction at the in-process that slides, can ensure the stable meshing of latch and one-way rack like this.

Further setting the following steps: the other side that the control handle lies in articulated department for the latch is equipped with the application of force portion that outwards extends and back to mounting bracket one side perk.

Through adopting above-mentioned technical scheme, the setting up of application of force portion makes things convenient for the doctor to carry out the application of force to control handle, makes and controls more convenient.

Further setting the following steps: one-way rack includes that the tooth piece that sets up by a plurality of interval arrangements constitutes, the tooth piece is the second perpendicular of perpendicular to bar axis that resets to a side of crook portion back to, the second guide inclined plane that a side of tooth piece orientation crook portion set up for the slope, the first guide inclined plane that a side of latch tooth back to crook portion set up for the slope, a side of latch orientation crook portion is the first perpendicular of perpendicular to bar axis that resets.

Through adopting above-mentioned technical scheme, when the second guide inclined plane moved towards first guide inclined plane, through the effect direction of inclined plane change power for the tooth piece can move towards first guide inclined plane one side, realizes unidirectional movement. When the second vertical surface moves towards the first vertical surface, the two vertical surfaces are mutually abutted, so that the tooth block cannot move towards one side of the first vertical surface, and the limit is realized.

Further setting the following steps: and a torsion spring for driving the latch to be meshed with the unidirectional rack is arranged between the control handle and the mounting rack.

Through adopting above-mentioned technical scheme, control handle drives the latch and meshes in one-way rack under the effect of torsional spring, and at operation control handle's in-process like this, the hand need not exert two-way effort to control handle for control handle's operation is more convenient.

Further setting the following steps: the mounting bracket is provided with a mounting hole for installation of the positioning single hook, the mounting hole penetrates through the mounting bracket, the positioning single hook is matched with the mounting hole in a sliding manner, and the mounting bracket is provided with a locking piece for fixing and positioning the single hook.

Through adopting above-mentioned technical scheme, the cooperation between mounting hole and the locking piece can be adjusted the position that the single hook of location lies in the mounting bracket, better adaptation different operational aspect.

Further setting the following steps: the locking piece comprises a bolt, and the bolt is in threaded connection with the mounting frame and penetrates through the mounting hole to be used for abutting and fixing the positioning single hook in the mounting hole.

Through adopting above-mentioned technical scheme, bolt and mounting bracket threaded connection to the drive bolt moves towards the mounting hole inside, is used for supporting the tight mounting in mounting hole pore wall with the location single hook.

To sum up, the utility model discloses following beneficial effect has: the utility model has the advantages of simple operation and high efficiency.

Drawings

FIG. 1 is a perspective view of an embodiment;

FIG. 2 is a schematic structural diagram of an embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a sectional view of the embodiment;

fig. 5 is an enlarged view of a portion B in fig. 4.

In the figure: 1. a mounting frame; 2. positioning the single hook; 21. a main body portion; 22. a hook portion; 3. a reset rod; 4. a backstop member; 41. clamping teeth; 42. a tooth block; 5. a control handle; 6. a slide hole; 7. a guide chute; 8. a limiting block; 9. a force application part; 10. a second vertical surface; 11. a second guide ramp; 12. a first guide ramp; 13. a first vertical surface; 14. mounting holes; 15. a locking member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, a minimally invasive femoral fracture repositor comprises a mounting frame 1, a positioning single hook 2 and a repositioning rod 3, wherein the positioning single hook 2 comprises a main body 21 and a hook part 22 which is arranged at one end of the main body 21 and integrally connected with the main body. The mounting bracket 1 is provided with a slide hole 6 for the reset rod 3 to slide back and forth along the axial direction of the slide hole towards the hook portion 22, the peripheral wall of the reset rod 3 is provided with a guide chute 7 extending along the axial direction of the slide hole, the inner wall of the slide hole 6 is integrally provided with a limit block 8 matched with the guide chute 7 and used for limiting the reset rod 3 to rotate circumferentially, and the limit block 8 is matched with the guide chute 7 in a sliding manner. A control handle 5 is hinged on the mounting rack 1 through a rotating shaft, and a backstop component 4 which is matched with the control handle 5 and the reset rod 3 and used for limiting the reset rod 3 to move back to the hook part 22 is arranged between the control handle 5 and the reset rod 3.

The non-return member 4 includes a one-way rack disposed at the bottom of the guide chute 7 and extending along the axial direction of the reset rod 3, and a latch 41 integrally disposed at one end of the control handle 5 and capable of engaging with the one-way rack. The other end of the control handle 5, which is located at the hinged position and is opposite to the latch 41, is provided with a force application part 9 which extends outwards and tilts back to one side of the mounting rack 1. The one-way rack comprises a plurality of tooth blocks 42 arranged at intervals, one side surface of the tooth block 42 back to the hook part 22 is a second vertical surface 10 vertical to the axis of the reset rod 3, one side surface of the tooth block 42 facing the hook part 22 is a second guide inclined surface 11 obliquely arranged, one side surface of the latch 41 back to the hook part 22 is a first guide inclined surface 12 obliquely arranged, one side surface of the latch 41 facing the hook part 22 is a first vertical surface 13 vertical to the axis of the reset rod 3, and the tooth block 42 and the reset rod 3 are integrally arranged.

A torsion spring (not shown in the figure) for driving the latch 41 to be meshed with the one-way rack is arranged between the control handle 5 and the mounting rack 1, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected with the control handle 5, and the other end of the torsion spring is fixedly connected with the mounting rack 1. The mounting frame 1 is provided with a mounting hole 14 for the main body portion 21 to pass through, the mounting hole 14 penetrates through the mounting frame 1, the mounting frame 1 is matched with the main body portion 21 in a sliding mode, and the mounting frame 1 is provided with a locking piece 15 for fixing the main body portion 21. The locking member 15 includes a bolt, which is screwed with the mounting frame 1 and inserted into the mounting hole 14 to tightly fix the main body 21 in the mounting hole 14.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a femoral fracture wicresoft restorer, includes mounting bracket (1), location single hook (2) and stick (3) that resets, location single hook (2) including set up in main part (21) of mounting bracket (1) and set up in crotch portion (22) of main part (21), its characterized in that: articulated on mounting bracket (1) have brake valve lever (5), stick (3) reset and set up in mounting bracket (1) towards hook portion (22) reciprocating sliding, be equipped with between brake valve lever (5) and the stick (3) that resets and both cooperate and be used for restricting to reset stick (3) and keep back to backstop component (4) that hook portion (22) removed.

2. The minimally invasive femoral fracture repositor of claim 1, wherein: the non-return component (4) comprises a one-way rack which is arranged on the peripheral wall of the reset rod (3) and extends along the axial direction of the reset rod (3) and a latch (41) which is arranged on the control handle (5) and can be meshed with the one-way rack.

3. The minimally invasive femoral fracture repositor of claim 2, wherein: including setting up in mounting bracket (1) and supplying slide opening (6) that stick (3) slided that resets, it follows guide spout (7) of its axial extension to be equipped with on stick (3) resets, be equipped with cooperation guide spout (7) in slide opening (6) and be used for restricting stopper (8) that reset stick (3) circumferential direction, work as during stopper (8) cooperation guide spout (7), latch (41) can with one-way rack intermeshing.

4. The minimally invasive femoral fracture repositor of claim 2, wherein: the other side of the hinged position of the control handle (5) relative to the latch (41) is provided with a force application part (9) which extends outwards and tilts back to one side of the mounting rack (1).

5. The minimally invasive femoral fracture repositor of claim 2, wherein: one-way rack includes that tooth piece (42) that set up by a plurality of interval arrangements constitute, tooth piece (42) are the second perpendicular (10) of perpendicular to bar (3) axis of resetting to a side of crook portion (22) back to, tooth piece (42) are second guide inclined plane (11) that the side of crook portion (22) set up for the slope, latch (41) are first guide inclined plane (12) that the side of crook portion (22) set up for the slope back to, latch (41) are first perpendicular (13) of perpendicular to bar (3) axis of resetting to a side of crook portion (22).

6. The minimally invasive femoral fracture repositor of claim 2, wherein: and a torsion spring for driving the latch (41) to be meshed with the unidirectional rack is arranged between the control handle (5) and the mounting rack (1).

7. The minimally invasive femoral fracture repositor of claim 1, wherein: be equipped with mounting hole (14) that supply location list hook (2) to install on mounting bracket (1), mounting bracket (1) is run through in mounting hole (14), location list hook (2) and mounting hole (14) cooperation of sliding, be equipped with locking piece (15) that are used for fixed location list hook (2) on mounting bracket (1).

8. The minimally invasive femoral fracture repositor of claim 7, wherein: the locking piece (15) comprises a bolt, and the bolt is in threaded connection with the mounting frame (1) and penetrates through the mounting hole (14) to be used for abutting and fixing the positioning single hook (2) in the mounting hole (14).